LocalApicProcessorControlOwner Class Reference

#include <LocalApicTlbShootdown.h>

Collaboration diagram for LocalApicProcessorControlOwner:

Public Member Functions
bool	tryAcquire (size_t processor)
bool	ownedBy (size_t processor) const
bool	activeBy (size_t processor) const
bool	markQuiesced (size_t processor)
bool	claimQuiesced (size_t processor)
bool	claimAnyQuiesced (size_t processor)
bool	claimAnyFailed (size_t processor)
bool	quiescedBy (size_t processor) const
bool	markTerminal (size_t processor)
bool	claimTerminal (size_t processor)
bool	terminalBy (size_t processor) const
bool	markFailed (size_t processor)
bool	failedBy (size_t processor) const
bool	release (size_t processor)
bool	owned () const

Static Public Attributes
static constexpr size_t	MaxProcessors = 64

Private Attributes
Atomic< size_t >	m_State

Static Private Attributes
static constexpr size_t	QuiescedBit = size_t(1) << (sizeof(size_t) * 8 - 1)
static constexpr size_t	TerminalBit = QuiescedBit >> 1
static constexpr size_t	FailedBit = TerminalBit >> 1
static constexpr size_t	PhaseMask = QuiescedBit | TerminalBit | FailedBit

Detailed Description

Serialises processor-control state and mutation-gate ownership.

The phase bits are part of the same atomic word as the owning processor, so no caller can observe a successful quiesce as ownerless between operations.

Definition at line 22 of file LocalApicTlbShootdown.h.

Constructor & Destructor Documentation

LocalApicProcessorControlOwner()

LocalApicProcessorControlOwner::LocalApicProcessorControlOwner ( )

inline

Definition at line 26 of file LocalApicTlbShootdown.h.

Member Function Documentation

activeBy()

bool LocalApicProcessorControlOwner::activeBy ( size_t  processor ) const

inline

Definition at line 36 of file LocalApicTlbShootdown.h.

claimAnyFailed()

bool LocalApicProcessorControlOwner::claimAnyFailed ( size_t  processor )

inline

Adopt an operation which returned only after its last barrier access.

Definition at line 67 of file LocalApicTlbShootdown.h.

claimAnyQuiesced()

bool LocalApicProcessorControlOwner::claimAnyQuiesced ( size_t  processor )

inline

Adopt a completed reversible pause for irreversible terminal control.

Definition at line 51 of file LocalApicTlbShootdown.h.

claimQuiesced()

bool LocalApicProcessorControlOwner::claimQuiesced ( size_t  processor )

inline

Definition at line 45 of file LocalApicTlbShootdown.h.

claimTerminal()

bool LocalApicProcessorControlOwner::claimTerminal ( size_t  processor )

inline

Definition at line 91 of file LocalApicTlbShootdown.h.

failedBy()

bool LocalApicProcessorControlOwner::failedBy ( size_t  processor ) const

inline

Definition at line 105 of file LocalApicTlbShootdown.h.

markFailed()

bool LocalApicProcessorControlOwner::markFailed ( size_t  processor )

inline

Definition at line 100 of file LocalApicTlbShootdown.h.

markQuiesced()

bool LocalApicProcessorControlOwner::markQuiesced ( size_t  processor )

inline

Definition at line 40 of file LocalApicTlbShootdown.h.

markTerminal()

bool LocalApicProcessorControlOwner::markTerminal ( size_t  processor )

inline

Definition at line 86 of file LocalApicTlbShootdown.h.

owned()

bool LocalApicProcessorControlOwner::owned ( ) const

inline

Definition at line 113 of file LocalApicTlbShootdown.h.

ownedBy()

bool LocalApicProcessorControlOwner::ownedBy ( size_t  processor ) const

inline

Definition at line 32 of file LocalApicTlbShootdown.h.

quiescedBy()

bool LocalApicProcessorControlOwner::quiescedBy ( size_t  processor ) const

inline

Definition at line 82 of file LocalApicTlbShootdown.h.

release()

bool LocalApicProcessorControlOwner::release ( size_t  processor )

inline

Definition at line 109 of file LocalApicTlbShootdown.h.

terminalBy()

bool LocalApicProcessorControlOwner::terminalBy ( size_t  processor ) const

inline

Definition at line 96 of file LocalApicTlbShootdown.h.

tryAcquire()

bool LocalApicProcessorControlOwner::tryAcquire ( size_t  processor )

inline

Definition at line 28 of file LocalApicTlbShootdown.h.

Member Data Documentation

FailedBit

constexpr size_t LocalApicProcessorControlOwner::FailedBit = TerminalBit >> 1

staticconstexprprivate

Definition at line 120 of file LocalApicTlbShootdown.h.

m_State

Atomic<size_t> LocalApicProcessorControlOwner::m_State

private

Definition at line 122 of file LocalApicTlbShootdown.h.

MaxProcessors

constexpr size_t LocalApicProcessorControlOwner::MaxProcessors = 64

staticconstexpr

Definition at line 24 of file LocalApicTlbShootdown.h.

PhaseMask

constexpr size_t LocalApicProcessorControlOwner::PhaseMask = QuiescedBit | TerminalBit | FailedBit

staticconstexprprivate

Definition at line 121 of file LocalApicTlbShootdown.h.

QuiescedBit

constexpr size_t LocalApicProcessorControlOwner::QuiescedBit = size_t(1) << (sizeof(size_t) * 8 - 1)

staticconstexprprivate

Definition at line 118 of file LocalApicTlbShootdown.h.

TerminalBit

constexpr size_t LocalApicProcessorControlOwner::TerminalBit = QuiescedBit >> 1

staticconstexprprivate

Definition at line 119 of file LocalApicTlbShootdown.h.

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The documentation for this class was generated from the following file:

• LocalApicTlbShootdown.h